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Investigating the TeV Morphology of MGRO J1908+06 with VERITAS
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2014 (English)In: Astrophysical Journal, ISSN 0004-637X, E-ISSN 1538-4357, Vol. 787, no 2, 166Article in journal (Refereed) Published
Abstract [en]

We report on deep observations of the extended TeV gamma-ray source MGRO J1908+06 made with the VERITAS very high energy gamma-ray observatory. Previously, the TeV emission has been attributed to the pulsar wind nebula (PWN) of theFermi-LAT pulsar PSR J1907+0602. We detect MGRO J1908+06 at a significance level of 14 standard deviations (14σ) and measure a photon index of 2.20 ± 0.10stat ± 0.20sys. The TeV emission is extended, covering the region near PSR J1907+0602 and also extending toward SNR G40.5-0.5. When fitted with a two-dimensional Gaussian, the intrinsic extension has a standard deviation of σsrc = 044 ± 002. In contrast to other TeV PWNe of similar age in which the TeV spectrum softens with distance from the pulsar, the TeV spectrum measured near the pulsar location is consistent with that measured at a position near the rim of G40.5-0.5, 033 away.

Place, publisher, year, edition, pages
2014. Vol. 787, no 2, 166
Keyword [en]
gamma rays: general, gamma-ray burst: individual: MGRO J1908+06 VER J1907+062, pulsars: individual: PSR J1907+0602, ISM: supernova remnants
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:lnu:diva-42781DOI: 10.1088/0004-637X/787/2/166OAI: oai:DiVA.org:lnu-42781DiVA: diva2:807525
Available from: 2015-04-23 Created: 2015-04-23 Last updated: 2015-05-05Bibliographically approved

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Prokoph, Heike
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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • text
  • asciidoc
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